Stenciling-machine.



No. 887,438. PATENTED MAY 12, 1908.

- S. T. SMITH, JR. STENGILING MACHINE.

APPLIOATION FILED FEB. 12. 190B.

C; gVenfo/s l 27, A flame UNITED STATES PATENT orinon.

WRITER COMPANY, or NEW YORK, N.

Y., A CORPORATION OF NEW JERSEY.

STENCILING-MAGHINE Specification of Letters Patent.

Iatented May 12, 1908.

Application filed February 12, 1908. Serial No. 415,516.

To all whom it may concern:

Be it known that I, STEPHEN T. SMITH, Jr., a citizen of the UnitedStates, residing in Stamford, in the county of Fairfield and State ofConnecticut, have invented certain new and useful Improvements inStenciling- Machines, of which thefollowing is a specification.

This invention relates to stenciling machines forusewith tyewrittenstencils, and more particularly to t e means for delivering thesheets from the machine.

Thestencil is usuall' wrapped around an inking cylinder, and t e sheetsto be stenciled upon are passed between said cylinder and a pressureroll. Themachineis usually equipped with stripping tongues placed at.

the ends of the stencil cylinder", to lie between the stencil and thesheets to be sten oiled upon, so as to separate'or strip the lat tergently from the stencil sheet, as the cylinder revolves; The strippingis rendered necessar because of the adhesive character of the in usuallyemployed. In some cases the sheets to be stenciled upon are too narrowto .be engaged by .both of said stripping tongues; and it is alsosometimes desired to pass narrow. sheets through the middle portionofthe machine, so that their side edges are. not caught-by either of thestripping.

tongues.

The object of my invention isto provide simplefinexpehsive and effectivemeans for stripping narr'owsheets from a'stencil cylin-. der, withouthowever rendering the machine less vaiuable for use with wide sheets.

At delivery sidev of .the cylinder, I

mount a pair ofstripping fingers Whichex-.

tend'tcwards each other along the cylinder, and each of which islongitudinallyfiu-ted with its concave side lying close to the cylinder,so that its'convex side may insinuate itself between the cylinder andthe leading edgeof the paper which has been sten'ciled upon, asitemerges. from the machine, and

gently stri der. 1 Each the paper from' the stencil cylinof .said stripsis swiveled at its outer end, so that it may be adjusted at different anles relatively to the cylinder, to

obtain the. est results, and also so that it may be. swung back entirelyout ofthe way when wide sheets are being run through the machine.

My invention shown applied to stenciling machines of. thekind disclosedin United States Patent No 832,217 of October 2., 1906, in whichstripping tonguesior wide sheets of paper curveunder the stencilcylinder past the ends of the pressure roll; and my novel strippingfingers are preferably pivoted to the rear ends oisaid tongues.

Figure 1 is a sectional diagrammatic elevation of a stenciling machineof the kind disclosed in said patent, .showing the novel strippingfinger in full lines in working osition, and in dotted lines in aposition 0 disuse. Fig. 2 is a-plan of the stripping de- Vices. I v

The stenciling machine usually comprises a stencil cylinder 1, apressure roll 2 a feed board 3 and a directrix plate 4 curving aroundthe underside of the cylinder at the introductory side thereof. Anarrowsheet 5 to be stenciled upon is shown as passing narrow to be engaed by the stripping tongues 6, 7 usually p seed at the ends of the clinder 2, as set forth in said patent. The side. borders of the narrowsheet 5 are engaged by the sides of a pair of stripping fingersS whichextend toward each other along the cylinder 1. Each of the fingers isfluted, and its concave side lies close to the cylinder and near thepressure roll 2, as at Fig. 1; the lower edge 9 of each iin er beingclose to the cylinder, so as to enter etween the cylinder and the leadinedge of the sheet and strip the latter there om; the convex outer sideofthe stripper acting like a wedge for this pur- 6, 7 the strippers beinswiveled at. their .outer ends to the rear one s of saidtongues as at10, so that the strippers may be adjusted, as for instance to the dottedline position, as at Fig. 2, to suit di'fl'erent kinds. of sheets beirun through theinachinc; and aiso to enab e the strippers to be s\ vunrearwardly entirely out of the way, as at lfig. 1, when wide sheets arebeing stenciled.

It will be understood that one stripping linger maybe used for one sideedge of the sheet while the other side edge is engaged by the usualstrippin tongue. 6 or 7;' the other stri pingiinger eing swung backtothe dotte me position at Fig. 1. I

through the machine, said sheet being too roll, of a stripping fingerarranged on the delivery .side of the cylinder and extending along thestencil cylinder and close thereto; said stripping finger swiveled onits outer end to permit it to he swung away from the stencil cylinder,and being longitudinally fluted presented to the thin with a stencilcylinder and a pressure roll, of a pair of stripping fingers mounted "onthe delivery side of the cylinder and extendingtowards each other alongthe stencil cylinder and close thereto; each of said stripping fingersbeing swiveled on its outer end to permit it to be swung away from thesemen stencil cylinder independently of the other stripping finger.

4. In a stenciling machine, the combina tion with a stencil cylinder anda roll to press 'the sheets against the cylinder, of a stripping tonguecurving under the cylinder to engage the side edge of a sheetof paper,and a stripping finger mounted on the rear end of said tongue andextending along the stencil cylinder and close thereto.

5. In a stenciling machine, the combination with a stencil cylinder anda roll to press the sheets against the cylinder, tongues extending alongthe ends of said roll close to said cylinder to keep the side edges ofthe paper out of contact with the stencil, and stripping fingersswiveled upon the rear ends of said tongues to extend along the cylinderand close thereto and to swing rearwardly away from the cylinder. v

STEPHEN T. SMITH, JR. Witnesses: I JOHN 0. SEIFERT, K. FRANKEORT.

